The temperature on January 22, 1885 was about -4.9 °C. The air pressure was 2 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 77%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
January 26 » Troops loyal to The Mahdi conquer Khartoum, killing the Governor-General Charles George Gordon.
April 3 » Gottlieb Daimler is granted a German patent for his engine design.
April 24 » American sharpshooter Annie Oakley is hired by Nate Salsbury to be a part of Buffalo Bill's Wild West.
May 1 » The original Chicago Board of Trade Building opens for business.
July 20 » The Football Association legalizes professionalism in association football under pressure from the British Football Association.
July 23 » President Ulysses S. Grant dies of throat cancer.
Day of marriage May 24, 1911
The temperature on May 24, 1911 was between 9.7 °C and 15.4 °C and averaged 13.1 °C. There was 0.6 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
September 29 » Italy declares war on the Ottoman Empire.
Day of death June 4, 1967
The temperature on June 4, 1967 was between 6.3 °C and 20.3 °C and averaged 14.8 °C. There was 2.9 mm of rain during 2.0 hours. There was 5.0 hours of sunshine (30%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 14 » The New York Times reports that the U.S. Army is conducting secret germ warfare experiments.
February 10 » The 25th Amendment to the United States Constitution is ratified.
March 14 » The body of U.S. President John F. Kennedy is moved to a permanent burial place at Arlington National Cemetery.
April 24 » Cosmonaut Vladimir Komarov dies in Soyuz 1 when its parachute fails to open. He is the first human to die during a space mission.
April 24 » Vietnam War: American General William Westmoreland says in a news conference that the enemy had "gained support in the United States that gives him hope that he can win politically that which he cannot win militarily".
September 20 » RMSQueen Elizabeth 2 is launched Clydebank, Scotland.
When copying data from this family tree, please include a reference to the origin: Nienke Oudbier, "Descendants van de Vlag1", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-oudbier/I2436.php : accessed February 15, 2026), "Willem Ploeg (1885-1967)".
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